Carlos Villalobos holds a sign along with other protesters in front of the Metro building Tuesday, Oct. 11, 2011, in Houston. Metro mechanics, bus drivers and rail drivers rallied along with activists with the Occupy Houston protest.

Carlos Villalobos holds a sign along with other protesters in front of the Metro building Tuesday, Oct. 11, 2011, in Houston. Metro mechanics, bus drivers and rail drivers rallied along with activists with the

"This is something that I think everybody at some point and time should be concerned about as a resident of Houston and as a citizen of the world," said the UGK rapper, who joined sign-carrying activists this morning.

The Occupy Houston movement is an outgrowth of Occupy Wall Street, a New York protest targeting social and economic inequality and corporate greed.

"We have multi-billion-dollar corporations making decisions for people, and we don't have any say-so in these decisions, simply because they have more money and more power," Bun B said.

The rapper, who arrived in Houston on Sunday on the heels of concerts in Boston and Washington, D.C., said it's important for people to speak out against injustice.

About 70 members of Transport Workers Union Local 260 converged on METRO headquarters this morning at 1900 Main, joined by about 30 Occupy Houston protesters.

Wayne Jackson, interim transportation grievance representative of TWU Local 260, said he welcomed the support. He said his members simply want fairness at the negotiating table.

"We want a fair contract, something that's suitable to make a decent living," Jackson said. "Everything has gone up out there and in all actuality, without a wage increase of some kind, we are actually losing. We just can't keep up with inflation."

The mechanics, bus drivers and rail drivers carried signs that read, "The New Metro: Your Lies Are Expected But Not Acceptable," and "Don't 'X' Out Public Transit."

Many of the signs were aimed at METRO President and CEO George Greanias, who issued this statement:

"Our operators and mechanics, along with our entire bargaining unit workforce, are critical to the success of METRO and we appreciate all that they do. We have been working for three months to reach an agreement with the union, and we will not negotiate in the press. However, we are committed to reaching an agreement that is fair to everyone involved."

Meanwhile, Bun B took to social media to spread his message of self-empowerment.

"If you're unemployed and not job hunting today, join us if you can," he said on his Twitter page around noon, urging Houstonians to stand up against "corporate irresponsibility and unfair political, social and economical influence."

"Don't just tweet about it. Be about it. Come on down," he told his 300,443 Twitter followers.

"It means that we've got a voice that people are used to listening to," Gregory said. "I talk a lot and some people listen, but Bun B's got a lot of people who listen to him. His voice is one that is going to make a big difference."